/ˈnoʊsˌpiːs/; /ˈnoʊsˌpiːs/; /ˈnoʊsˌpiːs/ (nohs-PEES)

Definitions

1. noun

a piece of metal or other material at the end of a gun barrel through which the gun is aimed, typically a metal tube with a sighting system

“The soldier carefully adjusted the nosepiece of his rifle before taking aim.”